Abdul Elah Noori, A. ., Bahnam Abbu Samter, M. ., & Abdulrahmaan Khalid, G. . (2013). Design and Implementation of Audiometric Instrument Based on Microcontroller. Journal of Engineering and Sustainable Development, 17(1), 48-59. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1065